ajax 这样调用不出页面。是不是还需要引入js？还是什么问题？

<div id="mysearch"></div>

<script>
$.ajax({
             type: "GET",
             url: "/index.php?s=news&c=search&catid=1&ajax_page=myajax.html&page=1&keyword=关键词",
             dataType: "text",
             success: function(html){
                  $('#mysearch').html(html);
            }
         });
</script>